Back in June, rapper Riff Raff promised a pretty impressive list of collaborators for his upcoming album Peach Panther, including Drake, Lil Wayne and Justin Bieber.

According to a video posted by the rapper on Saturday, the JB collab has become a reality. Fans can now hear a preview of the Riff Raff/Biebs track, in a clip Riff Raff posted with the superstar on Instagram. Justin can be seen chilling in a car with the rapper and lipsyncing along to what is probably his verse on the new single.

The "Boyfriend" singer is once again trying his hand at rapping, with the preview showing him rapping about an actress doing backflips on a mattress. The pop star has attempted to prove himself as a rapper in the past, showing off his freestyle rap skills during radio interviews and spitting on the 2013 hit "Lolly" with Maejor Ali.

No word yet on the name of the song, but according to reports it will also feature Rich the Kid and was produced by Bieber pal Diplo and Boaz van de Beat.

Hopefully the clip can tide fans over until the release of Justin's highly anticipated new single "What Do You Mean"...#4Days